May 25, 2001 #1 Guest Is it possible to solve comparisations in mathcad? ex : x³ +5x² +x +7 = 0 Thanks a lot rbergiers@hotmail.com
Is it possible to solve comparisations in mathcad? ex : x³ +5x² +x +7 = 0 Thanks a lot rbergiers@hotmail.com
May 26, 2001 #2 Qshake Structural Jul 12, 2000 2,672 If your after the roots of the polynomial listed in your thread, the answer is yes. Use the polyroots function in Mathcad to solve for those. Upvote 0 Downvote
If your after the roots of the polynomial listed in your thread, the answer is yes. Use the polyroots function in Mathcad to solve for those.
Jun 12, 2001 #3 engcomp Structural Dec 27, 1999 58 A program called MATHSERV is available at: http://www.engs-comp.com/mathserv/where ordinary BASIC code can be typed in any word processor and the results are typed back into the document. I would enter the function: FX = "(x^3 + 5*x^2 + x + 7)" Then I would find the high-low range of roots: graph(FX, -10, 5) (the results of the "graph" function can't be posted here) Then I discover there is only one result: RES = bisect(FX,-7,-5,.0001) := -5.0748 Regards, Helmut Upvote 0 Downvote
A program called MATHSERV is available at: http://www.engs-comp.com/mathserv/where ordinary BASIC code can be typed in any word processor and the results are typed back into the document. I would enter the function: FX = "(x^3 + 5*x^2 + x + 7)" Then I would find the high-low range of roots: graph(FX, -10, 5) (the results of the "graph" function can't be posted here) Then I discover there is only one result: RES = bisect(FX,-7,-5,.0001) := -5.0748 Regards, Helmut
Jun 12, 2001 #4 svanels Petroleum Oct 24, 1999 387 Define the function f(x) := x3+5x2+7 make a guess x:=-1 Use the root function R:=root(f(x),x) Steven van Els SAvanEls@cq-link.sr Upvote 0 Downvote
Define the function f(x) := x3+5x2+7 make a guess x:=-1 Use the root function R:=root(f(x),x) Steven van Els SAvanEls@cq-link.sr
Aug 28, 2001 #5 cuky2000 Electrical Aug 18, 2001 2,133 Go to "Resource Center" Icon. Click in "Solve Equations" and open the example " open the Quick Sheet "Finding the Root of a Polynomial". There are other examples that could be useful for your purpose. Upvote 0 Downvote
Go to "Resource Center" Icon. Click in "Solve Equations" and open the example " open the Quick Sheet "Finding the Root of a Polynomial". There are other examples that could be useful for your purpose.
